New patch to review for coreboot: drivers/spi: provide a mechanism to obtain the SPI flash boot device

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17715

-gerrit

commit adc6af11a45601c10210a4956c37936080a2372a
Author: Aaron Durbin 
Date:   Sat Dec 3 17:04:06 2016 -0600

drivers/spi: provide a mechanism to obtain the SPI flash boot device

The MRC cache wants to be able to access the SPI flash boot device.
    Allow an easy way to provide that so that there isn't duplicate
    spi_flash objects representing the same device.

BUG=chrome-os-partner:56151

Change-Id: Iba92e8bb8a6060cdd327b10f5f8ec23ac61101e7
    Signed-off-by: Aaron Durbin 
---
 src/drivers/spi/boot_device_rw_nommap.c | 6 ++++++
 src/include/spi_flash.h                 | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/src/drivers/spi/boot_device_rw_nommap.c b/src/drivers/spi/boot_device_rw_nommap.c
index a52a7be..e7d9b9a 100644
--- a/src/drivers/spi/boot_device_rw_nommap.c
+++ b/src/drivers/spi/boot_device_rw_nommap.c
@@ -95,3 +95,9 @@ const struct region_device *boot_device_rw(void)

return &spi_rw;
 }
+
+const struct spi_flash *boot_device_spi_flash(void)
+{
+	boot_device_rw_init();
+	return car_get_var(sfg);
+}
diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h
index 8fec484..95b8251 100644
--- a/src/include/spi_flash.h
+++ b/src/include/spi_flash.h
@@ -87,4 +87,8 @@ int spi_flash_volatile_group_end(const struct spi_flash *flash);
 int chipset_volatile_group_begin(const struct spi_flash *flash);
 int chipset_volatile_group_end(const struct spi_flash *flash);

+/* Return spi_flash object reference for the boot device. This is only valid
+ * if CONFIG_BOOT_DEVICE_SPI_FLASH is enabled. */
+const struct spi_flash *boot_device_spi_flash(void);
+
 #endif /* _SPI_FLASH_H_ */